Assertion (A): At 300 K, kinetic energy of 16g of methane is equal to the kinetic energy of 32 g of oxygen.
Reason (R) : At constant temperature, kinetic energy of one mole of all gases is equal. The correct answer is

Options

A. Both (A) and (R) are true and (R) is the correct explanation of (A)
B. Both (A) and (R) are true but (R) is not the correct explanation of (A)
C. (A) is true but (R) is not true
D. (A) is not true but (R) is true

Answer

a

Explanation

Kinetic energy for n moles of gas is, `KE = 3/2 nkT`
`therefore KE propto T`
At constant temperature, kinetic energy of one mole of any gas is equal.